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An oil slick on water is 90 nanometers thick and illuminated by white light at an incidence angle of 0.0 degrees to its surface. Find what is the most constructively reflected wavelength and color does the oil appear, given its index of refraction is 1.40?
a certain defibrillator sends 0.12 c of charge through the heart. the capacitor responsible for holding this charge
Two identical spheres are made of conducting material. Initially, sphere 1 has a net charge of 33Q and sphere 2 has a net charge of -18 Q
After a 0.785 nm x-ray photon scatters from a free electron, the electron recoils with a speed equal to 1.53E+6 m/s, What was the Compton shift in the photon's wavelength
The two stars in a binary star system have masses 1.7×10^30 kg and 6.1×10^30 kg. What is the speed of the lightest star
Two cars, both of mass m, collide and stick together. Prior to the collision, one car had been traveling north at speed 2v, Find the speed vfinal of the joined cars after the collision
A sled slides down a hill 45 meters high with a slope of 25o. The total mass of the sled plus contents is 247 kg. find the velocity of the sled at the bottom
A machine gun fires 25-g bullets at the rate of 4 bullets per second. What is the average recoil force experienced by the machine gun
An X-ray tube is similar to a cathode-ray tube. Electrons are accelerated to high speeds at one end of the tube. What speed would this potential difference give to protons
A light ray is incident on a plane interface between two media. Find what angle that the refracted ray makes with the normal if the second medium has n = 1.55
A -6.0 diopter lens is held 10.0 cm from an ant that is 1.0mm high. What is the height of the image
A full cylinder has an absolute pressure of 1.9 107 Pa when the temperature is 300 K. Find out the mass of oxygen in the cylinder.
Four vectors A,B,C ,D and are shown (not to scale). Vector A has magnitude 23.0 and acts at an angle of 14.7 degrees with respect to the positive x axis. find the magnitude and direction of the resultant vector R
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